Ventilating device



Nov. 29, 1932. ,889,1 1 7 l M. ADAMCIKAS; ALSO KNOWN AS M. ADAMTCHIK ET AL VENTILATING DEVICE Filed Oct. 28, 1929 I Patented Nov. 29, 1932.

UNITED STATES MYKAS ADAMGIKAS, ALSO PATENT T VENTILATING- nEvIoE Application filed October 28, 1929, Seria1 No. 402,966; and in GratBritaiii Novembr 1, 1928. I

This invention relates to an improved construction and arrangement of fan or the like, more particularly adapted to be used on omnibuses, tramcars, trains, aeroplanes, motor cars and other vehicles, but generally capable of being secured to any roof, wall or the like, exposed to weather conditions, the main object of the invention being to provide a construction and general arrangement of fan suitable for ventilating which has to be placed in positions exposed to weather conditions and which shall be very compact.

The invention also consists in the improved construction and arrangement of fan as hereinafter more particularly described.

The invention is illustrated, by way of example, in the accompanying drawing, in which Figure 1 is a sectional elevation of one arrangement in which the driving motor is disposed outside the space to be ventilated and Figure 2' is a similar view in which the driving motor is disposed within the space to be ventilated. 7

Referring to the form of construction illustrated in Figure 1, the rotor 1 of the fan provided with a fairing 2 is mounted on the shaft of the electric motor 3, the latter being secured to the roof of the vehicle by means of a supporting ring 5, to which are connected supporting arms 4 provided on or attached to the casing of the motor. The inlet or suction nozzle of the fan consists of a circular member 6 fitting in a circular recess formed in the roof of the vehicle and tapering towards the rotor, being secured to the ring supporting the motor. The exhaust part of the fan consists of two deflecting surfaces 7 the one being a continuation of the circular member 6 which forms the suction nozzle above referred to and being secured to the supporting ring and the other one being secured to the periphery of the motor case, the two deflectors being curved and bent back so that the annular exit formed by them faces the outer surface of the roof of the vehicle. The cross-sectional area of the exhaust formed by the two deflectors increases towards the said exit, and their inner outlines are preferably surfaces formed by continu ous curves belonging to the same family.

Inthis form of construction the electric motor-lies above the rotor and is laterally surrounded by one of thedeflectors 7." Its Known AS MICHAEL annn'ronrxnivn ciusnrrn IVLASSIERA, V V on ALnwYoH, Lonnon, ENGLAND joint with the upper deflector 7 preferably throughthe interposition of a suitable waterproof lining.

i Abaflie plate may beprovided in front of the inlet of the fan, the distance of the said plate relatively to the ceiling being adjusted against the action of a spring along a guid mg member. of square cross-sectionforming an extenslon of the fairingof the rotor hub,

which fairing forms the boss of a spider-like frame secured to the supporting ring of the electric motor. Thebaflle plate may serve as a support for electric lamps and as a re-' flector forvsuch lamps and also carry a bowl enclosing the lamps. i

The'leads to the: electric motor are preferably enclosed ina pipe passing throughthe exhaust part of the fan along one of the beams of the spider-like frame and be suitably securedthereto. i

The oiling of the motor may be effected from a grease cup connected by a pipe with the upper bearing of the motor and through its hollow shaft with the lower bearing.

The form of construction illustrated in Figure 2 differs from that illustrated in Figure 1 by-this' that the electric'motor 3 is supported by the ring 5 and supporting arms .4 within the space to be'ventilated, the rotor lof the fan lying between the driving motor and the hood or cover. The deflectors 7 are connectedtogether by aplurality of dis-* tance pieces :9. i

In the case of fans mountedon the roof of vehicles, a screen is preferably provided outside on the roof in front of the exhaust of the fan with respect to the directionof travel of the vehiclefand extending approximately one-third around the circumference of the fan. A similar arrangement is preferably provided above the fan when the latter is mounted on a vertical wall.

It is'to be understoodthat if the direction of rotation is reversed, the parts 7 will act as the inlet and the part 8 as the outlet of the air flow.

We wish it to be understood that the details for carrying the invention into effect may be modified :without inzany way: departing from the'rspiritofthe invention. 7 V

Having now described our invention, wl1at we claim as new and desir e to secure by Letters Patent is 1. A weatherproof, electrically 'driven, ventilating fan more particularly intended for installation on the roof or wall of a vehicle and comprising in combinationwith an electric motor an outside protecting hood and a ventilating bladed; Wheelilia'vinge a: hub; a ventilatingspassage: which-iris of: annular cr0ss+section from-the: suction: toithe streainlined exit end and into: which: the ventilata- V a ventilating passage which is of annular in-g blades proj e ct the said-ventilating pas sage being constituted by two continuous curved: guiding surfaces, .the exit end beingz curved back i with respect to! the} suction end and being ofigradually increasing: area: and one of the said continuous cunvedgluding surfaces including, the hub of'the' bladed wheel. I

. 2. A-weatherproofeelectricallivdriven,.ven-- tilating fan more particularly intended: for:

installation on'the roof or wall of a vehicle andcomprising. in combination with: an electric motor an outside protectinglhood and a: ventilating, bladed wheel having a hub;

crossesection froin'thesuction to therstreamlined exit end and into which the! ventilating;

blades project, the said ventilating passage beingconstituteda by' two continuous curved guiding; surfaces;- the exit end? being curved back with? respect to 'the suctifona'end and being'of gradually increasin'gtarea and; one

of the said continuous curved? guiding" surfiacesincluding the hub of'the bladed Wheel 7 an'd'a part of themotor:

3; Aweatherproof,electrically driven, ventilatingfan as claimed i n' claim 1 and in which the electricrmotorisarranged'. between the protecting hood and one of the curved guiding surtaces, a portion thereof forming part of the said curved guiding surface.

A Weatherproof, electrically driven wentilatin'g fan as" claimed in claim 1" and. in which the: electric motor is arranged. in the interior of the vehicle to be ventilated and a portion thereof forming part of one of the said curved guiding: surfaces which includes the hub.

Intestimony whereof we have signedour 1 names to this specification.

MYKAS ADAMCIKAS.

GIUSEPPE MASSERA. 

